What Is Post-Inflammatory Hyperpigmentation? Here’s What You Need to Know And How to Treat It
Cetaphil’s RadianceLabs gets into the science of the whys and hows of what skin inflammation is.
It’s no secret that when you live in the Philippines, humidity, pollution, exposure to sunlight (even indoors!), combined with everyday life experiences such as stress and hormonal changes, can affect your skin health. More often than not, the bumps, acne, dullness, and discoloration that show up on our faces are signs of irritation for sensitive skin and post-inflammatory hyperpigmentation (PIH).
While some factors can be unavoidable, solutions to these skin concerns, particularly acne-related post-inflammatory hyperpigmentation, are always within reach. As part of Cetaphil’s ongoing campaign for more science-backed conversations around sensitive skin, the brand launched RadianceLabs.
What is post-inflammatory hyperpigmentation (PIH)?
Together with Makati-based skin clinic DermHQ, the event was a multi-action experiential workshop designed to educate and empower individuals with dull and uneven skin tones through the Cetaphil Bright Healthy Radiance range.
It was also a timely reminder about how you aren’t alone in your skin care journey, with data revealing that 80 percent of derm patients around the world are diagnosed with acne-related post-inflammatory hyperpigmentation.
When we talk about hyperpigmentation, it refers to any discoloration of the skin caused by acne scars, sun damage, freckles, age spots, and a condition called melasma. Post-inflammatory hyperpigmentation happens when your skin produces melanin after it experiences irritation or inflammation. Think razor bumps, rashes, allergic reactions, bug bites, and even residual marks from medical or cosmetic procedures, affecting people of all ages.

Courtesy of Cetaphil
One of the highlights of the event was a panel discussion with dermatologist Gaile Robredo, MD. During her session, Dr. Robredo took attendees on a relatable skin-care journey of how women are on a quest for effective, yet gentle solutions.
“When recommending products to my patients, I always look for products that are effective, but still gentle enough to maintain my skin barrier,” shares Dr. Robredo. “What I appreciate about it is how it works on multiple levels. Its brightening effects are gentle, yet hydrating. It has become a staple in my routine and a recommended option for many of my patients as well.”
How to care for skin with PIH
The panel also discussed aftercare in dealing with PIH and why it’s important to use products that are science-backed and won’t cause skin irritation. Among the seven products from the Cetaphil Bright Healthy Radiance range, you can build a regimen that complements your lifestyle and needs for both your face with the Brightness Reveal Creamy Cleanser and apply the Brightness Refresh Toner. Target dark spots with the lightweight Perfecting Serum and don’t forget your SPF with the Brightening Day Protection Cream SPF 15 during the day and Brightening Night Comfort Cream at night.
The Cetaphil Bright Healthy Radiance range is formulated with Gentle Bright Technology that combines natural sea daffodil extract and niacinamide to reduce the appearance of dark spots and hyperpigmentation, promoting a brighter, more radiant complexion.

Courtesy of Cetaphil
“Cetaphil Bright Healthy Radiance products are also ideal for post-treatment care, offering gentle yet effective support to help soothe, hydrate, and brighten the skin. Their fragrance-free, hypoallergenic formulas make them suitable for use after facials, exfoliation, or light peels—calming sensitivity while enhancing the skin’s natural glow,” says Dr. Robredo.
Cetaphil Bright Healthy Radiance is available in Watsons, Mercury Drug, TikTok Shop, Lazada, and Shopee.
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